Overview
The Square D 8903L020 is an electrically held lighting contactor designed for reliable remote and centralized control of indoor and outdoor lighting systems. This 2-pole unit features interchangeable field-convertible contacts, simple coil replacement, and proven performance in commercial and industrial applications requiring dependable lighting control across multiple circuits.
Key Features
- Electrically Held Design: Electrically held device for continuous remote control operation
- Field-Convertible Contacts: Contacts are field convertible from NO to NC for installation flexibility
- Compact Open Frame: Lighting contactor is 5.00 inches tall, 2.88 inches wide and 3.12 inches deep
- Rated for Lighting Loads: Can switch up to 30 A fluorescent and 20 A tungsten lighting loads
- Easy Maintenance: Coil and contacts are easily replaced
- UL and CSA Certified: 8903L lighting contactors are UL Listed and CSA Certified
Technical Specifications
The following specifications apply to the 8903L020 variant:
- Number of Poles: 2
- Contact Configuration: 2 NO (Normally Open)
- Maximum Fluorescent Load: 30 A
- Maximum Tungsten Load: 20 A
- Coil Voltage: 110/120 VAC 50/60 Hz
- Voltage Rating: 600 VAC
- Terminal Connection: Screw clamp
- Type: Electrically Held Lighting Contactor
- Mounting: Open Frame
- Certifications: UL Listed, CSA Certified
Typical Applications
Square D lighting contactors are used wherever reliable, convenient, and economical control of indoor and outdoor lighting is required. Common applications include:
- Commercial office and retail lighting systems
- Warehouse and industrial facility lighting control
- Parking lot and outdoor lighting automation
- Hospital and institutional lighting networks
- Energy management and centralized lighting control systems
- Remote-controlled lighting circuits in multi-zone installations
Compatibility & Replacements
Compatible With
- Square D lighting control systems and panels
- NEMA and IEC-compliant control circuits
- 120V AC control circuits (50/60 Hz)
- Standard industrial lighting control wiring
- Lighting management and energy automation systems
Replaces / Drop-In Replacement For
The Square D 8903L020 is part of the 8903L series family of lighting contactors. Related models in the 8903L family include:
- 8903LO20V02 (equivalent electrically held 2-pole configuration)
- 8903LG20V02 (mechanically held variant)
- 8903LX020 (20A rated variant)
Verify compatibility with your specific system integrator before ordering, as contact configuration and coil voltage options vary across the series.
Works With
- Square D control enclosures and disconnect switches
- Standard 120V AC coil voltage supply
- Conventional lighting control wiring and terminals
- NEMA 1 and NEMA 3R enclosure systems
- Field-replaceable auxiliary contact blocks












